US5662141A - Leak-resistant fluid coupling arrangement - Google Patents

Leak-resistant fluid coupling arrangement Download PDF

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Publication number
US5662141A
US5662141A US08/692,315 US69231596A US5662141A US 5662141 A US5662141 A US 5662141A US 69231596 A US69231596 A US 69231596A US 5662141 A US5662141 A US 5662141A
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United States
Prior art keywords
coupling
seal
end wall
valve member
sleeve
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Expired - Lifetime
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US08/692,315
Inventor
Massimo Arosio
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Faster SRL
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Faster SRL
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Priority to US08/692,315 priority Critical patent/US5662141A/en
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Publication of US5662141A publication Critical patent/US5662141A/en
Assigned to FASTER S.P.A. reassignment FASTER S.P.A. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FASTER S.R.L.
Assigned to FASTER S.P.A. reassignment FASTER S.P.A. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: FASTER INTERNATIONAL S.R.L.
Assigned to FASTER INTERNATIONAL S.R.L. reassignment FASTER INTERNATIONAL S.R.L. MERGER INTO NUOVA FASTER S.P.A. (11/23/2004) , CHANGE OF NAME TO FASTER S.P.A. (11/23/2004), MERGER INTO FASTER INTERNATIONAL S.R.L. (4/10/2008) Assignors: FASTER S.P.A.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L29/00—Joints with fluid cut-off means
    • F16L29/04—Joints with fluid cut-off means with a cut-off device in each of the two pipe ends, the cut-off devices being automatically opened when the coupling is applied
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/28—Couplings of the quick-acting type with fluid cut-off means
    • F16L37/30—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings
    • F16L37/32—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings at least one of two lift valves being opened automatically when the coupling is applied
    • F16L37/34—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings at least one of two lift valves being opened automatically when the coupling is applied at least one of the lift valves being of the sleeve type, i.e. a sleeve is telescoped over an inner cylindrical wall
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87917—Flow path with serial valves and/or closures
    • Y10T137/87925—Separable flow path section, valve or closure in each
    • Y10T137/87941—Each valve and/or closure operated by coupling motion
    • Y10T137/87949—Linear motion of flow path sections operates both
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87917—Flow path with serial valves and/or closures
    • Y10T137/87925—Separable flow path section, valve or closure in each
    • Y10T137/87965—Valve- or closure-operated by coupling motion

Definitions

  • the subject of the present invention is a quick coupling for connecting hoses carrying a pressurized fluid.
  • this object is achieved by the fact that use is made of a quick female coupling having a fluid inlet and outlet and containing in its interior a fixed shutoff bolt acting in combination with tubular parts that can be moved against the action of spring means, and there can be inserted into the female part a male coupling fitted with a cylindrical projection having an aperture for the pressurized fluid to flow through and having internal sealing means, and that the coupling is characterized in that, housed inside the male part, is a sliding tubular part having at the front end a closed wall against which there presses a spring supported by a locally fixed support, in that the tubular part has external circumferential collar which, in the rest position, presses against an annular step on the inside of the cylindrical projection, in that the tubular part, wish the aid of an intermediate O ring, supports, and allows to slide, a shutoff body having a sealing surface which the action of a spring means presses against a shutoff shoulder on the internal circumference of the cylindrical projection and in that the shutoff body has apertures following the
  • FIG. 1 shows the two components of the quick coupling in the closed position, not assembled together
  • FIG. 2 shows the first stage in assembling together the two components of the quick coupling
  • FIG. 3 shows a further position of the components of the quick coupling in the course of their assembly
  • FIG. 4 shows the components of the quick coupling, now fully assembled and consequently with pressurized fluid flowing through it
  • FIG. 5 shows on an enlarged scale a detail of the shutoff means located inside the male coupling.
  • the quick coupling marked 1 as a whole, consists of a female part 2 and a coupling 3 forming the male part.
  • the part 2 has, in a known way, an axial hole 4 for the pressurized fluid to flow through. Also in a known way there is provided, in a locally fixed position inside the axial hole 4, a bolt 5 having a shutoff seat 6 acting in combination with a tubular shutoff body 7 that can be moved against the action of a spring 8 and that acts in combination with annular sleeve 9 urged by a spring 10 pressing against a stop formed on the external circumference of the tubular body 7.
  • the sleeve 9 has a first front surface 43.
  • the female part 2 is known in the prior art.
  • the coupling 3 forming the male part comprises an axial hole 4 for the pressurized fluid to flow through.
  • a locally fixed support 11 comprising through apertures 12 for the fluid.
  • a helical spring 13 presses against the support 11 and acts against the closed wall 14 of a tubular part 15 on whose external circumference is an annular projection 16 by which it presses against a stop 17 projecting from the inside of a bolt body 40.
  • a sealing means 17" Inside the body 40, at its front, is a sealing means 17" in the form of an O ring.
  • a step 18 which defines an annular shutoff shoulder is formed inside the body 40. Pressing against this shutoff shoulder 18 is an annular shutoff surface 19 forming part of a valve body 20, which may for example be cup-shaped and is urged by a spring 21 pressing against the fixed support 11.
  • the tubular bolt 15, which is urged by the spring 13, is pushed in the inactive condition of the coupling 3 so that its projecting collar 16 is stopped by the stop 17 so that the sealing ring 17" is covered and protected in this position.
  • the spring 21 acts on the cup body 20 and pushes its shutoff surface 19 against the shutoff edge 18 of the bolt body 40.
  • the sealing ring 17" is still covered and shielded by the tubular body 7 and the fluid is still unable to flow through the holes 4.
  • the spring 10 produces a displacement of the tubular body 7, releasing the shutoff seat 6 of the bolt 5.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

A leak-resistant fluid coupling arrangement includes two coupling assemblies, each having valves for preventing fluid flow in a disconnected state, and for permitting fluid flow in a connected state. The valve in one of the assemblies is mounted within a tubular body having an external stop. A sleeve is mounted exteriorly of the tubular body. A spring bears against the sleeve and the stop to resiliently position a front surface of the tubular body adjacent an end wall of the valve. In the other assembly, the valve is located between a tubular part and a second tubular body, and has a seal that engages an internal shoulder of the second body. Apertures extend through the seal. A spring resiliently positions an end wall of the tubular part adjacent a front region of the second body. In the connected state, the seal is disengaged from the shoulder, and fluid flows through the apertures.

Description

This is a continuation of application Ser. No. 08/463,313, filed Jun. 2, 1995, now abandoned.
BACKGROUND OF THE INVENTION
The subject of the present invention is a quick coupling for connecting hoses carrying a pressurized fluid.
Quick couplings consisting of a female part into which a male part can be inserted are known in the prior art.
Because of the high pressures which may even reach some 100 bar in the hoses to be coupled together, it has sometimes happened in the past that while the quick couplings are being connected up, the annular seals inside the couplings come into direct contact, in the course of the coupling process, with the hydraulic fluid, which is at high pressure. As a consequence the O ring, particularly that inside the male coupling, will come into contact with a very violent flow of oil. This wears or damages the seal and leads to leaks of oil after the coupling has been put together.
SUMMARY OF THE INVENTION
It is an object of the present invention to overcome these problems and to provide a novel quick coupling that can be assembled and disassembled safely even if inside the fittings is a fluid at high pressure, and that also means that undesirable damage to the seal located inside the quick coupling is avoided with certainty and that it is consequently possible to prevent undesirable leaks of fluid.
According to the invention, this object is achieved by the fact that use is made of a quick female coupling having a fluid inlet and outlet and containing in its interior a fixed shutoff bolt acting in combination with tubular parts that can be moved against the action of spring means, and there can be inserted into the female part a male coupling fitted with a cylindrical projection having an aperture for the pressurized fluid to flow through and having internal sealing means, and that the coupling is characterized in that, housed inside the male part, is a sliding tubular part having at the front end a closed wall against which there presses a spring supported by a locally fixed support, in that the tubular part has external circumferential collar which, in the rest position, presses against an annular step on the inside of the cylindrical projection, in that the tubular part, wish the aid of an intermediate O ring, supports, and allows to slide, a shutoff body having a sealing surface which the action of a spring means presses against a shutoff shoulder on the internal circumference of the cylindrical projection and in that the shutoff body has apertures following the shutoff surface to allow a pressurized fluid to pass through.
With a quick coupling devised in accordance with the invention it becomes possible to insert the projecting portion of the male coupling into the female coupling portion. This coupling together can be done with little effort, and the O rings in the male coupling will not come into contact, during the coupling or uncoupling process, with the pressurized fluid, and the pressurized fluid will flow only and solely when the seal or seals are completely shielded.
BRIEF DESCRIPTION OF THE DRAWINGS
The subject, devised in accordance with the present invention, will now be described in greater detail in the form of embodiment provided purely by way of example and illustrated in the accompanying drawings, in which:
FIG. 1 shows the two components of the quick coupling in the closed position, not assembled together,
FIG. 2 shows the first stage in assembling together the two components of the quick coupling,
FIG. 3 shows a further position of the components of the quick coupling in the course of their assembly,
FIG. 4 shows the components of the quick coupling, now fully assembled and consequently with pressurized fluid flowing through it, and
FIG. 5 shows on an enlarged scale a detail of the shutoff means located inside the male coupling.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
As FIG. 1 to 4 clearly show, the quick coupling, marked 1 as a whole, consists of a female part 2 and a coupling 3 forming the male part.
The part 2 has, in a known way, an axial hole 4 for the pressurized fluid to flow through. Also in a known way there is provided, in a locally fixed position inside the axial hole 4, a bolt 5 having a shutoff seat 6 acting in combination with a tubular shutoff body 7 that can be moved against the action of a spring 8 and that acts in combination with annular sleeve 9 urged by a spring 10 pressing against a stop formed on the external circumference of the tubular body 7. The sleeve 9 has a first front surface 43. The female part 2 is known in the prior art.
The coupling 3 forming the male part comprises an axial hole 4 for the pressurized fluid to flow through. Inside the hole 4 is a locally fixed support 11 comprising through apertures 12 for the fluid. A helical spring 13 presses against the support 11 and acts against the closed wall 14 of a tubular part 15 on whose external circumference is an annular projection 16 by which it presses against a stop 17 projecting from the inside of a bolt body 40. Inside the body 40, at its front, is a sealing means 17" in the form of an O ring. In addition, a step 18 which defines an annular shutoff shoulder is formed inside the body 40. Pressing against this shutoff shoulder 18 is an annular shutoff surface 19 forming part of a valve body 20, which may for example be cup-shaped and is urged by a spring 21 pressing against the fixed support 11.
Between the shutoff surface 19 and the end of the cup body 20 urged by the spring 21, are radial apertures 22 to allow the fluid to pass through.
The tubular bolt 15, which is urged by the spring 13, is pushed in the inactive condition of the coupling 3 so that its projecting collar 16 is stopped by the stop 17 so that the sealing ring 17" is covered and protected in this position. Simultaneously, the spring 21 acts on the cup body 20 and pushes its shutoff surface 19 against the shutoff edge 18 of the bolt body 40.
Thus, thanks to the provision of a sealing ring 30 situated between the cup-shaped valve body 20 and the tubular part 15, no movement of a pressurized fluid will be possible.
The insertion of the bolt body 40 of the coupling 3 into the axial hole 4 of the coupling 2, as illustrated in FIG. 2, causes the wall 14 of the tubular part 15 to press against the bolt 5 and the bolt body 40 passes into the axial hole 4 of the coupling 2, displacing as it does so the first front surface 43 of the sleeve 9 against the action of the spring 10, which spring is compressed.
The sealing ring 17" is still covered and shielded by the tubular body 7 and the fluid is still unable to flow through the holes 4.
As the bolt 40 continues to be inserted into the hole 4 of the coupling 2, the spring 10 produces a displacement of the tubular body 7, releasing the shutoff seat 6 of the bolt 5.
As can be seen in FIG. 3, in this condition the annular shutoff surface 19 is still pressing against the shutoff edge 18 formed on the inside of the tubular bolt 40 of the coupling 3.
The continued insertion of the coupling 3 in the hole 4 of the coupling 2 also produces an axial displacement of the cup body 20 against the action of the spring 21, causing the annular shutoff surface 19 to come away from the shutoff shoulder 18, so that it is only now that the pressurized fluid can flow along the hole 4, that is between the coupling 2 and the coupling 3 or the other way around.
The configuration of the component parts which allows free flow through the coupling 1 is illustrated once again on a larger scale in FIG. 5. As will be observed, the cup body 20 is pushed back by the annular projection 16 against the action of the spring 21, with the result that the annular shutoff surface 19 of the body 20 comes away from the shutoff shoulder 18, thereby permitting, only after the couplings 2 and 3 have been assembled together, unobstructed flow of the pressurized fluid through the radial holes 22 of the part 20.

Claims (4)

I claim:
1. A leak-resistant fluid coupling arrangement, comprising:
a) a first coupling assembly mounted in a passage extending along a longitudinal direction, and a second coupling assembly longitudinally insertable from a disconnected state into the passage to a connected state in which the assemblies are interconnected,
b) said first coupling assembly including
I) a first coupling member having a first fluid port,
ii) a first movable, longitudinally-extending tubular body having an external stop,
iii) a first valve member mounted within the first body and having a first seal for sealingly engaging the first body in the disconnected state, and also having a first end wall,
iv) a first movable, longitudinally-extending sleeve mounted exteriorly of the first body and having a first front surface,
v) means bearing against the sleeve and the stop for resiliently positioning the first front surface adjacent said first end wall in the disconnected state,
c) said second coupling assembly including
I) a second coupling member having a second fluid port,
ii) a second longitudinally-extending tubular body having an internal shoulder and a leading front region,
iii) a second movable, longitudinally-extending tubular part mounted within the second body and having a second end wall and an external collar,
iv) means bearing against the second coupling member for resiliently positioning the second end wall adjacent the leading front region of the second body,
v) a second valve member bearing against the second coupling member and situated radially intermediate the second tubular part and the second tubular body, said second valve member having a second seal for sealingly engaging the internal shoulder in the disconnected state, and also having apertures extending generally radially through the second valve member,
d) said leading front region of the second body engaging the first front surface of the first sleeve to push the first sleeve and the first body relative to the first valve member, thereby moving the first seal out of engagement with the first body in the connected state, and
e) said first end wall of the first valve member engaging the second end wall of the second part to cause the external collar to push the second seal out of engagement with the internal shoulder in the connected state, thereby enabling fluid flow between the ports and through the apertures in the connected state.
2. The arrangement of claim 1, wherein the external stop, the external collar, and the internal shoulder are each annular in shape.
3. The arrangement of claim 1; and further comprising a seal mounted in the leading front region of the second body, said seal facing and being enclosed by the second part in the disconnected state, said seal facing and being enclosed by the first tubular body in the connected state.
4. The arrangement of claim 1, wherein the second valve member includes a sealing ring for sealingly engaging the second part in both the disconnected and connected states.
US08/692,315 1994-06-10 1996-08-05 Leak-resistant fluid coupling arrangement Expired - Lifetime US5662141A (en)

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Application Number Priority Date Filing Date Title
US08/692,315 US5662141A (en) 1994-06-10 1996-08-05 Leak-resistant fluid coupling arrangement

Applications Claiming Priority (4)

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ITMI941218 IT1270206B (en) 1994-06-10 1994-06-10 QUICK COUPLING FOR UNDER PRESSURE FLUIDS
ITMI94A1218 1994-06-10
US46331395A 1995-06-02 1995-06-02
US08/692,315 US5662141A (en) 1994-06-10 1996-08-05 Leak-resistant fluid coupling arrangement

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US46331395A Continuation 1994-06-10 1995-06-02

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US5662141A true US5662141A (en) 1997-09-02

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EP (1) EP0686801B1 (en)
JP (1) JP2604995B2 (en)
AT (1) ATE164434T1 (en)
CA (1) CA2151425C (en)
DE (1) DE59501681D1 (en)
ES (1) ES2113695T3 (en)
IT (1) IT1270206B (en)

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US5884897A (en) * 1997-11-28 1999-03-23 Omba S.R.L. Quick-action male coupling connectable under pressure
EP1304132A1 (en) * 2001-10-18 2003-04-23 Siemens-Elema AB Coupling system
WO2006043883A1 (en) * 2004-10-22 2006-04-27 Nhi Consulting Ab Coupling device for transferring a fluid
US20060245903A1 (en) * 2005-03-09 2006-11-02 Clark Equipment Company Powered coupling of attachment hydraulics
DE202008010568U1 (en) 2008-08-08 2008-10-30 Snap-Tite Technologies Inc., Wilmington Threaded coupling with flow shut-off
US7762279B2 (en) 2005-11-05 2010-07-27 Snap-Tite Technologies, Inc. Threaded coupling with flow shutoff
US20100308580A1 (en) * 2008-02-18 2010-12-09 Takayuki Kuroda Fluid passage connection device
CN103672248A (en) * 2012-09-20 2014-03-26 北京精密机电控制设备研究所 Threaded connection and non-leakage fluid connector
US20160040815A1 (en) * 2013-04-05 2016-02-11 Alfa Gomma S.P.A. Quick coupling device for pressurised fluid
CN105636708A (en) * 2013-10-29 2016-06-01 兵神装备株式会社 Discharge system and method for replenishing fluid
US20170314432A1 (en) * 2016-05-02 2017-11-02 Ford Global Technologies, Llc System for Reverse Crankcase Ventilation During Boosted Engine Operation
CN107719407A (en) * 2017-10-09 2018-02-23 长沙开元仪器股份有限公司 A kind of rail vehicle Automatic Link Establishment
US9901729B2 (en) 2013-03-29 2018-02-27 Emd Millipore Corporation Sterile connection/disconnection coupling and method
US9976659B2 (en) 2015-06-01 2018-05-22 Holmbury, Ltd. Decompression coupling block
SE1751092A1 (en) * 2017-09-08 2019-03-09 Steelwrist Ab Hydraulic coupling device and male and female coupling units
US10253911B1 (en) * 2017-09-29 2019-04-09 AdelWiggins Group, a Division of Transdigm Inc. Quick disconnect coupling with selective mating capability
CN110056731A (en) * 2019-05-17 2019-07-26 万硕(成都)航空科技有限公司 A kind of spring is not exposed to the blindmate fluid connector of runner
CN110131510A (en) * 2019-05-17 2019-08-16 万硕(成都)航空科技有限公司 It is a kind of embedded to float greatly and spring is not exposed to the fluid connector of runner
WO2020177759A1 (en) * 2019-03-06 2020-09-10 奥动新能源汽车科技有限公司 Electrical connector, refrigerant pluggable connecting element, insert end, and receiving end
US11040868B2 (en) 2016-05-19 2021-06-22 Walnab Pty Ltd Fluid coupling assembly
CN113000237A (en) * 2019-12-19 2021-06-22 固瑞克明尼苏达有限公司 Isolation valve
US11067208B2 (en) * 2017-01-27 2021-07-20 Eaton S.A.S. Flat face female hydraulic coupling
US20220136634A1 (en) * 2019-07-17 2022-05-05 Huawei Technologies Co., Ltd. Joint, Cooling System, and Computer Apparatus

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ITMI20051643A1 (en) * 2005-09-07 2007-03-08 Faster Spa QUICK COUPLING WITH COMPENSATION OF THE COUPLING TOLERANCES
DE102007025787A1 (en) * 2007-05-24 2008-11-27 Faster S.P.A. Pipe coupling, method for pipe coupling, and for self-cleaning of coupling halves during pipe coupling
ITMI20121136A1 (en) * 2012-06-28 2013-12-29 Alfagomma Do Brasil Ltda HYDRAULIC OR HYDRAULIC QUICK COUPLING MALE FOR PRESSURE FLUIDS
CN109140085A (en) * 2017-06-28 2019-01-04 中航光电科技股份有限公司 One kind fluidly connecting device assembly and its terminative connector

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Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5884897A (en) * 1997-11-28 1999-03-23 Omba S.R.L. Quick-action male coupling connectable under pressure
EP0926423A2 (en) * 1997-11-28 1999-06-30 Omba S.r.l. Quick-Action male coupling connectable under pressure
EP0926423A3 (en) * 1997-11-28 2000-07-19 Omba S.r.l. Quick-Action male coupling connectable under pressure
EP1304132A1 (en) * 2001-10-18 2003-04-23 Siemens-Elema AB Coupling system
WO2006043883A1 (en) * 2004-10-22 2006-04-27 Nhi Consulting Ab Coupling device for transferring a fluid
US7290977B2 (en) 2005-03-09 2007-11-06 Clark Equipment Company Powered coupling of attachment hydraulics
US20060245903A1 (en) * 2005-03-09 2006-11-02 Clark Equipment Company Powered coupling of attachment hydraulics
US7762279B2 (en) 2005-11-05 2010-07-27 Snap-Tite Technologies, Inc. Threaded coupling with flow shutoff
US20100308580A1 (en) * 2008-02-18 2010-12-09 Takayuki Kuroda Fluid passage connection device
US8523155B2 (en) * 2008-02-18 2013-09-03 Pascal Engineering Corporation Fluid passage connection device
DE202008010568U1 (en) 2008-08-08 2008-10-30 Snap-Tite Technologies Inc., Wilmington Threaded coupling with flow shut-off
CN103672248A (en) * 2012-09-20 2014-03-26 北京精密机电控制设备研究所 Threaded connection and non-leakage fluid connector
US10940307B2 (en) 2013-03-29 2021-03-09 Emd Millipore Corporation Sterile connection/disconnection coupling and method
US10675454B2 (en) 2013-03-29 2020-06-09 Emd Millipore Corporation Sterile connection/disconnection coupling and method
US9901729B2 (en) 2013-03-29 2018-02-27 Emd Millipore Corporation Sterile connection/disconnection coupling and method
US9903520B2 (en) * 2013-04-05 2018-02-27 Alfa Gomma S.P.A. Quick coupling device for pressurized fluid
US20160040815A1 (en) * 2013-04-05 2016-02-11 Alfa Gomma S.P.A. Quick coupling device for pressurised fluid
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Also Published As

Publication number Publication date
CA2151425C (en) 1999-05-04
JPH084966A (en) 1996-01-12
EP0686801B1 (en) 1998-03-25
ES2113695T3 (en) 1998-05-01
CA2151425A1 (en) 1995-12-11
DE59501681D1 (en) 1998-04-30
ITMI941218A1 (en) 1995-12-10
EP0686801A1 (en) 1995-12-13
ATE164434T1 (en) 1998-04-15
JP2604995B2 (en) 1997-04-30
IT1270206B (en) 1997-04-29
ITMI941218A0 (en) 1994-06-10

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